Samuel Woods, 20, was arrested and charged with assault. A judge has ordered that he be evaluated at the state hospital.

Police said surveillance video shows Woods bursting through the door of the store's break room and attacking a 17-year-old co-worker.

"Mr. Woods came running across the room, dived over the table, grabbed the young woman by the throat, choked her, took her to the ground -- where she eventually lost consciousness -- and then Mr. Woods continuously was punching her in the face," said Chief Michael Wallace. "And then he reached over and grabbed an object -- we believe it was a plastic knife -- and started jabbing it in her side."

According to a police affidavit, Woods left her there and eventually leapt from a second-floor platform onto the concrete floor of a stockroom.

Police found him injured on the floor. Investigators said he told police that "something evil came over him" and that he had no reason to attack her.

"He just said that evil came over him, he doesn't understand why he did it, he's ashamed for what he had done, and then tried to take his life," Wallace said.

According to the affidavit, Woods told police that he "has had issues with women since he was young and has acted out violently before by attacking a teacher."

Woods and the co-worker were taken to a hospital with injuries that were not life-threatening. Wallace said he's relieved the teenager will be OK.

"She was young, sitting there minding her own business, and the attack was without provocation," he said. "It was hard to watch."

Woods is being held on $100,000 bail at the Rockingham County Jail until he can be treated at the state hospital.

SHE SPOKE WITH THE POLICE CHIEF THAT HAS SEEN THE SURVEILLANCE VIDEO. HE DESCRIBES IT IN A LOT OF DIFFERENT WAYS BUT MOSTLY VICIOUS AND BRUTAL. SAMUEL WOODS WAS ARRAIGNED ON RECKLESS CONDUCT AND ASSAULT CHARGES. THEY ALSO ORDERED HE BE EVALUATED AT THE STATE HOSPITAL. YOU'RE A FINE SEEN IN THE BREAK ROOM OF THE MARKET BASKET WEDNESDAY NIGHT. SAMUEL WOODS OF NEWMARKET BURST THROUGH THE DOOR AND ATTACKED A 17-YEAR-OLD COWORKER. HE CAME RUNNING ACROSS THE ROOM, DIVED OVER THE TABLE, GRABBED THE YOUNG WOMAN BY THE THROAT, CHOKING HER, SHE EVENTUALLY LOST CONSCIOUSNESS, AND MR. WOODS CONTINUOUSLY WAS PUNCHING HER IN THE FACE. HE REACHED OVER AND GRABBED AN OBJECT THAT WE BELIEVE IS A PLASTIC KNIFE AND STARTED JABBING HER IN THE SIDE. HE LEFT HER THERE, LEAPING FROM A SECOND-FLOOR PLATFORM. HE SAID SOMETHING EVIL CAME OVER HIM AND THAT HE HAD NO REASON TO ATTACK HER. HE DOESN'T UNDERSTAND WHY HE DID IT. HE IS ASHAMED OF WHAT HE HAD DONE AND TRY TO TAKE HIS LIFE. HE TOLD THE OFFICER THAT HE HAD ISSUES WITH WOMEN SINCE HE WAS YOUNG AND HAD ACTED OUT VIOLENTLY BEFORE BY ATTACKING A TEACHER. THEY WERE TAKEN TO THE HOSPITAL AND HIS INJURIES NOT LIFE-THREATENING. RELIEVED THAT SHE WILL BE OK. SHE WAS MINDING HER OWN BUSINESS AND THE ATTACK WAS WITHOUT PROVOCATION. IT WAS HARD TO WATCH.